Springs are used in various fields of activity – from jewelry art and production of furniture before production of transport springs. You can learn to cast springs independently.
Instruction
1. Irrespective from what material and what size you gather to make spring, the technology and step-by-step order of its production will be identical. To wind spring, for a start find suitable steel with plain surface free of defects and with identical diameter on all length. If you have decided to do spring of steel, cut equal preparations for springs special shearing press, and heat the ends of preparations before work to 900-950 degrees within 15 minutes.
2. Delay the ends of preparation in the special device, and then, having heated preparation within half an hour in the furnace, begin to cast steel rod on the thread-cutting machine equipped with devices for coiling of spring.
3. Casting rod over the device, be accurate. Then level step of rounds by means of calibration press and draw in the ends of spring. Check perpendicularity of spring to supporting surface by means of the square and also measure its height.
4. Reheat spring and send it for training, having placed in the corresponding container with hardening medium – warm water with temperature no more than 30-40 degrees. After final cooling of spring remove from it residual strain – squeeze it so that rounds have adjoined with each other, and hold in such provision of 5-8 seconds.
5. If faces of spring have diameter more than 8 mm, process them on the grinding scalping machine with cooling liquid. For strengthening of its spring it is also possible to load and unload repeatedly during five-ten times until its height becomes final, and stress will not be removed.
6. The ready spring can be used even in such conditions in which it will be exposed to serious loadings.